Disposable bag for vacuum cleaners



Aug. 21, 1951 G. w. HoLT, JR

DIsPosABLE BAG FOR VACUUM CLEANERS 4 Sheets-Sheet 1 Filed March '7, 1946Aug. 21, 1951 G. w. HoLT, JR 2,564,845

DIsPosABLE BAG FOR VACUUM CLEANERS Filed March 7, 1946 4 Sheets-Sheet 2G. W. HOLT, JR

DISPOSABLE BAG FOR VACUUM CLEANERS 4A Sheets-Sheet 5 Aug. Z1, 1951 FiledMarch 7, 1946 Aug 2l, 1951 G. W. HoLT, JR

DIsPosABLE BAG FOR VACUUM CLEANERS 4 Sheets-Sheet 4 Filed March 7, 1946Patented Aug. 21, 1951 UNI IED ES i -OFFfLCE l @2,564,845

f DISBQ'SBLEBAGFOR .V CUIIMICLEANERS George/1W. iHolt,JJr., I Menominee,Mich., 'rass'ignor to Marathon .rorporatiomi Rothschild, ILWis.,t1 a.'.fcorporationof Wisconsin l ApplicationiMarch 7,1946,*SerialNo.1652;'112 ,Zllllaims. (Cl.il83-'e51) This invention'relates tofsuction"cleanersvand l more -f particularly -to v'an fair.filter carton fc'onfstructionl therefor.

.An object yof y thisrinventionisvtofprovide an improved 4carton-ltering -device for suction Acleaners, popularly referred "to Lasvacuum. cleaners The vinvention relates Sto fa l"iilter-fi-:onstructionhaving vthe .generalappearance-ofy a 4carton-'and provided with alteringmedium-Jattached -with in `.the carton rfor receiving dust'rianddirt l-colfllected .by the cleaner, l#said iilter lcarton lbeing.adapted Ato :be attached to the l discharge nozzle Lofthefcleanersoeasto retain the vdirt butfpermit the airtoescape-1throughrthecarton;-saidflcarton :being readily removable -"fromthe vacuum cleaner and disposable. Y "The invention f also relates f'to-means Yfor rat- .Itaching -the f'iilterf carton to ithe vacuumcleaner.by meanseof a suitable attachment :device which element isI of f avery-`simple preformed construction and providedwith `aiiIterlining whichasvsemblycanbe readily 'attachedjto' the cleaner and discardedwhen lledwithjdir-t, and replaced .at a very low cost.

These and foth'er fobjects-fofftheinvention will be apparent from thefollowing descriptiongand drawings wherein,

Figure 1 is a perspective view of my lter carton element, partly insection, to show the construction thereof,

Figure 2 is a plan view of the blank from which the lter carton is made,

Figure 3 is a plan view of the inside face of the carton blank having afilter lining attached thereto,

Figure 4 is a perspective View of the lter carton in partially set upand glued condition,

Figure 5 is a side view, partly in section, of the filter cartonretained in an attachment device,

Figure 6 is a perspective view of the filter carton retained in theattachment device in closed position,

. v.2 Y Figure 7 aplan View -showing the attachment #device inf open'fposition,

'-Fi'gure-f-S is a' sectionalj ViewtakenonlinesfB-LB .f-ofiFigure`-7,and

`^Figure791is=laside `elevational-view''of aevacuum "cleaner having thecarton attachment device and fiilter-'carton retainedin position on--the vacuum "c-Ieaner.

'fReferringf-to thefdrawingsl thef filter element is umade preferably--of a carton construction utializingfa blank illustratedin Figure'Zsuitably-cut andescored to vprovide La -frontpanel l ifa rear TLpanel* lGf and hingedeside panels` ll2 and lfb-hinged 'respectively to; panels-Y I I A and H, and'hingedA` side wpanels vIl) and l 5 fhinged totheresame panels at l'-tlf1e=-opposed verticalLedges thereof. '-Avbottom vfpanel f l3f is provided having hinged ear `rportions i' lill 1at -the lateral 'sides -'thereof. iA-suitablelfilter' -r-nedium,preferably Vmade of cellulose Vpadding, soft crepe paper-wadding,l hair,#excelsiorf or like fmaterial which vrwill '-actas "a -lter-'and"retainA"dirt 1an-'d l dust, Y is suitably f adhered i to g the inner"face-ofthe carton `blank inv therelation shown in I'Figure Sso fas tocoverithevv front :and rear vrpanels andthe pair of side'A panels llland l2,4 the 'side panels f l5 "andi l 1 preferably not having a/lining'-thereon.

*The carton blank is-'providedwith a'jseries "of perforations oropenings 20 of suitableidirnension which are' locatedfat regularintervals wona11' the lpar-ielsin orderV to permit -air to"escape'therefrom `when'the carton is in use-on the vacuum cleaner. =`Inmaking thelter carton from theblank described the -front-wall||andrearwall `lfare folded `at Vright anglestothe bottom i3. `jFlaps I i@arel then.- folded up and adhered" to "the corresponding overlappedportionsrof'panels .lli and '12. 'Side panels H and |'5 arethen'foldedover thepanels t2 and 11),' respectively,l andjadhered thereto; PanelsIL-l5, t6 'and l1 are provided with corresponding collar portions lla,ld, la, and lla, respectively, which are adapted to be folded outwardlyon the carton in order to form a collar portion. This collar portion atthe upper open end of the carton serves to position and support thecarton within a retaining sleeve of an attachment device that is adaptedto be aixed to the discharge pipe or opening of a vacuum cleaner. Theexternally folded collar portions are preferably adhered by adhesive tothe corresponding adjacent wall portions upon which they are folded soas to form a rigid collar portion. The completed iilter carton asillustrated in Figure 1 will thus be provided with a continuous innerlter lining 25 upon the interior thereof and the carton walls beingperforated will permit air to pass through said lter lining and out ofthe carton through the openings 20.

In order to retain the lter carton on a vacuum cleaner as illustrated inFigure 9 I provide a suitable attachment device made of sheet metalconsisting of a lower retaining section 36 and a hinged upper retainingsection 40. The upper section consists of a conical portion 30 having aslot 3l which is adapted to engage a retaining pin provided on thevacuum cleaner for bodily retaining same.v The conical portion 30 isintegrally formed with the upper section 40 and is provided with achannel portion 4| in.

which is retained a flexible gasket 32 made of soft rubber or similarmaterial.

The upper section of the attachment device is hinged on pintle'34 to thelower section which is also provided Vwith ton sealed within samewithout air leaking through the two retaining sections. When this cartonretaining attachment is aflixed to the vacuum cleaner in the positionindicated in Figure 9 and air is blown through the conical sec-A` tion30 it will pass into the inside of the carton and the air will befiltered through the inner lining 25 retaining any dust or dirt thereinand permitting the air to escape through the openings provided inthefaces of the carton.

According to the ,present invention I provide filter cartons of asuitable convenient size so that they can be readily handled by thehousewife and attached to the vacuum cleaner. These cartons can bereadily disconnected from the retaining attachment previously describedand when lled with dirt can be removed and discarded with the contents.The present invention eliminates the inconvenience and annoyancerequired previously in emptying and cleaning the usual cloth filter bagsas no dust or shaking of the lter element is required. It is merelyremoved from the retaining sleeve and discarded, and a new clean filtercarton is merely inserted in place.

It is to be understood that my invention is not necessarily restrictedto the specific construction of the elements previously described. It isobvious that any suitabletype of carton construction whetherrectangular, cylindrical or any other shape could be readily employedfor the same 4 purpose and provided with an inner filter lining.Suitable openings are provided in the outer wall portions of the cartonor container so as to permit the air to escape from the interioroutwardly thereof while retaining and filtering the dirt within thecarton. Similarly, it is obvious that any suitable retaining sleeves orfastening means can be used for attaching the filter element to anysuitable vacuum cleaner that may be used. Obviously the adapter orretaining means for the filter carton are necessarily constructed to fitand retain the particular type of filter element used, in position uponthe vacuum cleaner Vso as not toY permit any leakage of air at theconnecting region.

-It is intended to include in the appended claims the numerousmodications and variations of the construction embodying the principlesof my invention herein disclosed.

I claim: p

1. A disposable bag for use on vacuum cleaner comprising an open-endcarton of polygonal cross-section having side walls and a bottom wall ofpaper board, said side walls having apertures therein, a liner for eachof said carton walls of lter material and a strip of paper board lfolded over the edge of each side wall and overlying said liner wherebysaid liner is secured in said carton and whereby a rim is formed on theopen end of said carton.

2. A disposable bag for vacuum cleaner comprising an open-end carton inthe shape of a truncated-pyramid having four side walls and a bottomwall of paper board, said side walls having apertures therein, a linerfor each of said carton walls of cellulosic crepe wadding, and a stripof paper board secured to and folded over the top edge of each side walland overlying said liner whereby said liner is secured in said cartonand whereby a rim is formed on the open end of said carton.

GEORGE W. HOLT, J R.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,156,235 Kirby Oct. 12, 19151,504,136 Patterson et al Aug. 5, 1924 1,553,076 Halsted Sept. 8, 19251,918,764 Ljungquist July 18, 1933 1,924,249 Marshall Aug. 29, 19332,187,052 Poynter Jan. 16, 1940 2,388,279 Nuffer et al Nov. 6, 1945FOREIGN PATENTS Number Country Date 512,945 Great Britain Mar. 18, 1938

